[alsa-devel] [PATCH 1/2] ASoC: add es8316 codec driver
Pierre-Louis Bossart
pierre-louis.bossart at linux.intel.com
Wed May 10 20:49:13 CEST 2017
On 5/10/17 1:16 PM, Daniel Drake wrote:
> Add a codec driver for the Everest ES8316, based on code provided by
> David Yang from Everest Semi.
>
> I limited the functionality to items where the vendor code was clear,
> and things that can be tested on the Weibu F3C (Intel Cherry Trail).
> As a result the initial implementation only supports running in slave
> mode at single speed (up to 48kHz sample rate) using I2S. HPD is not
> supported.
>
> Signed-off-by: Daniel Drake <drake at endlessm.com>
> ---
> sound/soc/codecs/Kconfig | 4 +
> sound/soc/codecs/Makefile | 2 +
> sound/soc/codecs/es8316.c | 639 ++++++++++++++++++++++++++++++++++++++++++++++
> sound/soc/codecs/es8316.h | 122 +++++++++
> 4 files changed, 767 insertions(+)
> create mode 100644 sound/soc/codecs/es8316.c
> create mode 100644 sound/soc/codecs/es8316.h
>
> diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
> index 883ed4c8a551..c6286e5ba511 100644
> --- a/sound/soc/codecs/Kconfig
> +++ b/sound/soc/codecs/Kconfig
> @@ -72,6 +72,7 @@ config SND_SOC_ALL_CODECS
> select SND_SOC_DA9055 if I2C
> select SND_SOC_DIO2125
> select SND_SOC_DMIC
> + select SND_SOC_ES8316 if I2C
> select SND_SOC_ES8328_SPI if SPI_MASTER
> select SND_SOC_ES8328_I2C if I2C
> select SND_SOC_ES7134
> @@ -543,6 +544,9 @@ config SND_SOC_HDMI_CODEC
> config SND_SOC_ES7134
> tristate "Everest Semi ES7134 CODEC"
>
> +config SND_SOC_ES8316
> + tristate "Everest Semi ES8316 CODEC"
> +
> config SND_SOC_ES8328
> tristate
>
> diff --git a/sound/soc/codecs/Makefile b/sound/soc/codecs/Makefile
> index 28a63fdaf982..e878306ce46e 100644
> --- a/sound/soc/codecs/Makefile
> +++ b/sound/soc/codecs/Makefile
> @@ -65,6 +65,7 @@ snd-soc-da732x-objs := da732x.o
> snd-soc-da9055-objs := da9055.o
> snd-soc-dmic-objs := dmic.o
> snd-soc-es7134-objs := es7134.o
> +snd-soc-es8316-objs := es8316.o
> snd-soc-es8328-objs := es8328.o
> snd-soc-es8328-i2c-objs := es8328-i2c.o
> snd-soc-es8328-spi-objs := es8328-spi.o
> @@ -300,6 +301,7 @@ obj-$(CONFIG_SND_SOC_DA732X) += snd-soc-da732x.o
> obj-$(CONFIG_SND_SOC_DA9055) += snd-soc-da9055.o
> obj-$(CONFIG_SND_SOC_DMIC) += snd-soc-dmic.o
> obj-$(CONFIG_SND_SOC_ES7134) += snd-soc-es7134.o
> +obj-$(CONFIG_SND_SOC_ES8316) += snd-soc-es8316.o
> obj-$(CONFIG_SND_SOC_ES8328) += snd-soc-es8328.o
> obj-$(CONFIG_SND_SOC_ES8328_I2C)+= snd-soc-es8328-i2c.o
> obj-$(CONFIG_SND_SOC_ES8328_SPI)+= snd-soc-es8328-spi.o
> diff --git a/sound/soc/codecs/es8316.c b/sound/soc/codecs/es8316.c
> new file mode 100644
> index 000000000000..aea0b981891b
> --- /dev/null
> +++ b/sound/soc/codecs/es8316.c
> @@ -0,0 +1,639 @@
> +/*
> + * es8316.c -- es8316 ALSA SoC audio driver
> + * Copyright Everest Semiconductor Co.,Ltd
> + *
> + * Authors: David Yang <yangxiaohua at everest-semi.com>,
If the copyright is held by Everest Semiconductor and David Yang is also
from Everest Semiconductor, then a signoff from Everest looks very much
required?
> + * Daniel Drake <drake at endlessm.com>
> + *
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License version 2 as
> + * published by the Free Software Foundation.
> + */
> +
> +#include <linux/module.h>
> +#include <linux/acpi.h>
> +#include <linux/delay.h>
> +#include <linux/i2c.h>
> +#include <linux/mod_devicetable.h>
> +#include <linux/regmap.h>
> +#include <sound/pcm.h>
> +#include <sound/pcm_params.h>
> +#include <sound/soc.h>
> +#include <sound/soc-dapm.h>
> +#include <sound/tlv.h>
> +#include "es8316.h"
> +
> +/* In slave mode at single speed, the codec is documented as accepting 5
> + * MCLK/LRCK ratios, but we also add ratio 400, which is commonly used on
> + * Intel Cherry Trail platforms (19.2MHz MCLK, 48kHz LRCK).
> + */
> +#define NR_SUPPORTED_MCLK_LRCK_RATIOS 6
> +static const unsigned int supported_mclk_lrck_ratios[] = {
> + 256, 384, 400, 512, 768, 1024
> +};
> +
> +struct es8316_priv {
> + unsigned int sysclk;
> + unsigned int allowed_rates[NR_SUPPORTED_MCLK_LRCK_RATIOS];
> + struct snd_pcm_hw_constraint_list sysclk_constraints;
> +};
> +
> +/*
> + * ES8316 controls
> + */
> +static const DECLARE_TLV_DB_SCALE(dac_vol_tlv, -9600, 50, 1);
> +static const DECLARE_TLV_DB_SCALE(adc_vol_tlv, -9600, 50, 1);
> +static const DECLARE_TLV_DB_SCALE(hpmixer_gain_tlv, -1200, 150, 0);
> +static const DECLARE_TLV_DB_SCALE(mic_bst_tlv, 0, 1200, 0);
> +
> +static unsigned int linin_pga_tlv[] = {
> + TLV_DB_RANGE_HEAD(12),
> + 0, 0, TLV_DB_SCALE_ITEM(0, 0, 0),
> + 1, 1, TLV_DB_SCALE_ITEM(300, 0, 0),
> + 2, 2, TLV_DB_SCALE_ITEM(600, 0, 0),
> + 3, 3, TLV_DB_SCALE_ITEM(900, 0, 0),
> + 4, 4, TLV_DB_SCALE_ITEM(1200, 0, 0),
> + 5, 5, TLV_DB_SCALE_ITEM(1500, 0, 0),
> + 6, 6, TLV_DB_SCALE_ITEM(1800, 0, 0),
> + 7, 7, TLV_DB_SCALE_ITEM(2100, 0, 0),
> + 8, 8, TLV_DB_SCALE_ITEM(2400, 0, 0),
> +};
> +static unsigned int hpout_vol_tlv[] = {
> + TLV_DB_RANGE_HEAD(1),
> + 0, 3, TLV_DB_SCALE_ITEM(-4800, 1200, 0),
> +};
> +static const char * const alc_func_txt[] = { "Off", "On" };
> +static const struct soc_enum alc_func =
> + SOC_ENUM_SINGLE(ES8316_ADC_ALC1, 6, 2, alc_func_txt);
> +
> +static const char * const ng_type_txt[] =
> + { "Constant PGA Gain", "Mute ADC Output"};
> +static const struct soc_enum ng_type =
> + SOC_ENUM_SINGLE(ES8316_ADC_ALC6, 6, 2, ng_type_txt);
> +
> +static const char * const adcpol_txt[] = { "Normal", "Invert" };
> +static const struct soc_enum adcpol =
> + SOC_ENUM_SINGLE(ES8316_ADC_MUTE, 1, 2, adcpol_txt);
> +static const char *const dacpol_txt[] =
> + { "Normal", "R Invert", "L Invert", "L + R Invert" };
> +static const struct soc_enum dacpol =
> + SOC_ENUM_SINGLE(ES8316_DAC_SET1, 0, 4, dacpol_txt);
> +
> +static const struct snd_kcontrol_new es8316_snd_controls[] = {
> + SOC_DOUBLE_TLV("HP Playback Volume", ES8316_CPHP_ICAL_VOL,
> + 4, 0, 0, 1, hpout_vol_tlv),
> + SOC_DOUBLE_TLV("HPMixer Gain", ES8316_HPMIX_VOL,
> + 0, 4, 7, 0, hpmixer_gain_tlv),
> +
> + SOC_DOUBLE_R_TLV("DAC Playback Volume", ES8316_DAC_VOLL,
> + ES8316_DAC_VOLR, 0, 0xC0, 1, dac_vol_tlv),
> +
> + SOC_SINGLE("Enable DAC Soft Ramp", ES8316_DAC_SET1, 4, 1, 1),
> + SOC_SINGLE("DAC Soft Ramp Rate", ES8316_DAC_SET1, 2, 4, 0),
> +
> + SOC_ENUM("Playback Polarity", dacpol),
> + SOC_SINGLE("DAC Notch Filter", ES8316_DAC_SET2, 6, 1, 0),
> + SOC_SINGLE("DAC Double Fs Mode", ES8316_DAC_SET2, 7, 1, 0),
> + SOC_SINGLE("DAC Volume Control-LeR", ES8316_DAC_SET2, 2, 1, 0),
> + SOC_SINGLE("DAC Stereo Enhancement", ES8316_DAC_SET3, 0, 7, 0),
> +
> + /* +20dB D2SE PGA Control */
> + SOC_SINGLE_TLV("MIC Boost", ES8316_ADC_D2SEPGA,
> + 0, 1, 0, mic_bst_tlv),
> +
> + /* 0-+24dB Lineinput PGA Control */
> + SOC_SINGLE_TLV("Input PGA", ES8316_ADC_PGAGAIN,
> + 4, 8, 0, linin_pga_tlv),
> +
> + SOC_SINGLE_TLV("ADC Capture Volume", ES8316_ADC_VOLUME,
> + 0, 0xc0, 1, adc_vol_tlv),
> + SOC_SINGLE("ADC Soft Ramp", ES8316_ADC_MUTE, 4, 1, 0),
> + SOC_ENUM("Capture Polarity", adcpol),
> + SOC_SINGLE("ADC Double FS Mode", ES8316_ADC_DMIC, 4, 1, 0),
> +
> + SOC_SINGLE("ALC Capture Target Volume",
> + ES8316_ADC_ALC3, 4, 10, 0),
> + SOC_SINGLE("ALC Capture Max PGA", ES8316_ADC_ALC1, 0, 28, 0),
> + SOC_SINGLE("ALC Capture Min PGA", ES8316_ADC_ALC2, 0, 28, 0),
> + SOC_ENUM("ALC Capture Function", alc_func),
> + SOC_SINGLE("ALC Capture Hold Time", ES8316_ADC_ALC3, 0, 10, 0),
> + SOC_SINGLE("ALC Capture Decay Time", ES8316_ADC_ALC4, 4, 10, 0),
> + SOC_SINGLE("ALC Capture Attack Time", ES8316_ADC_ALC4, 0, 10, 0),
> + SOC_SINGLE("ALC Capture NG Threshold", ES8316_ADC_ALC6, 0, 31, 0),
> + SOC_ENUM("ALC Capture NG Type", ng_type),
> + SOC_SINGLE("ALC Capture NG Switch", ES8316_ADC_ALC6, 5, 1, 0),
> +};
> +
> +/* Analog Input Mux */
> +static const char * const es8316_analog_in_txt[] = {
> + "lin1-rin1",
> + "lin2-rin2",
> + "lin1-rin1 with 20db Boost",
> + "lin2-rin2 with 20db Boost"
> +};
> +static const unsigned int es8316_analog_in_values[] = { 0, 1, 2, 3 };
> +static const struct soc_enum es8316_analog_input_enum =
> + SOC_VALUE_ENUM_SINGLE(ES8316_ADC_PDN_LINSEL, 4, 3,
> + ARRAY_SIZE(es8316_analog_in_txt),
> + es8316_analog_in_txt,
> + es8316_analog_in_values);
> +static const struct snd_kcontrol_new es8316_analog_in_mux_controls =
> + SOC_DAPM_ENUM("Route", es8316_analog_input_enum);
> +
> +static const char * const es8316_dmic_txt[] = {
> + "dmic disable",
> + "dmic data at high level",
> + "dmic data at low level",
> +};
> +static const unsigned int es8316_dmic_values[] = { 0, 1, 2 };
> +static const struct soc_enum es8316_dmic_src_enum =
> + SOC_VALUE_ENUM_SINGLE(ES8316_ADC_DMIC, 0, 3,
> + ARRAY_SIZE(es8316_dmic_txt),
> + es8316_dmic_txt,
> + es8316_dmic_values);
> +static const struct snd_kcontrol_new es8316_dmic_src_controls =
> + SOC_DAPM_ENUM("Route", es8316_dmic_src_enum);
> +
> +/* hp mixer mux */
> +static const char * const es8316_hpmux_texts[] = {
> + "lin1-rin1",
> + "lin2-rin2",
> + "lin-rin with Boost",
> + "lin-rin with Boost and PGA"
> +};
> +
> +static const unsigned int es8316_hpmux_values[] = { 0, 1, 2, 3 };
> +
> +static SOC_ENUM_SINGLE_DECL(es8316_left_hpmux_enum, ES8316_HPMIX_SEL,
> + 4, es8316_hpmux_texts);
> +
> +static const struct snd_kcontrol_new es8316_left_hpmux_controls =
> + SOC_DAPM_ENUM("Route", es8316_left_hpmux_enum);
> +
> +static SOC_ENUM_SINGLE_DECL(es8316_right_hpmux_enum, ES8316_HPMIX_SEL,
> + 0, es8316_hpmux_texts);
> +
> +static const struct snd_kcontrol_new es8316_right_hpmux_controls =
> + SOC_DAPM_ENUM("Route", es8316_right_hpmux_enum);
> +
> +/* headphone Output Mixer */
> +static const struct snd_kcontrol_new es8316_out_left_mix[] = {
> + SOC_DAPM_SINGLE("LLIN Switch", ES8316_HPMIX_SWITCH, 6, 1, 0),
> + SOC_DAPM_SINGLE("Left DAC Switch", ES8316_HPMIX_SWITCH, 7, 1, 0),
> +};
> +static const struct snd_kcontrol_new es8316_out_right_mix[] = {
> + SOC_DAPM_SINGLE("RLIN Switch", ES8316_HPMIX_SWITCH, 2, 1, 0),
> + SOC_DAPM_SINGLE("Right DAC Switch", ES8316_HPMIX_SWITCH, 3, 1, 0),
> +};
> +
> +/* DAC data source mux */
> +static const char * const es8316_dacsrc_texts[] = {
> + "LDATA TO LDAC, RDATA TO RDAC",
> + "LDATA TO LDAC, LDATA TO RDAC",
> + "RDATA TO LDAC, RDATA TO RDAC",
> + "RDATA TO LDAC, LDATA TO RDAC",
> +};
> +
> +static const unsigned int es8316_dacsrc_values[] = { 0, 1, 2, 3 };
> +
> +static SOC_ENUM_SINGLE_DECL(es8316_dacsrc_mux_enum, ES8316_DAC_SET1,
> + 6, es8316_dacsrc_texts);
> +
> +static const struct snd_kcontrol_new es8316_dacsrc_mux_controls =
> + SOC_DAPM_ENUM("Route", es8316_dacsrc_mux_enum);
> +
> +static const struct snd_soc_dapm_widget es8316_dapm_widgets[] = {
> + SND_SOC_DAPM_INPUT("DMIC"),
> + SND_SOC_DAPM_INPUT("MIC1"),
> + SND_SOC_DAPM_INPUT("MIC2"),
> + SND_SOC_DAPM_MICBIAS("micbias", SND_SOC_NOPM, 0, 0),
> +
> + /* Input Mux */
> + SND_SOC_DAPM_MUX("Differential Mux", SND_SOC_NOPM, 0, 0,
> + &es8316_analog_in_mux_controls),
> +
> + SND_SOC_DAPM_PGA("Line input PGA", ES8316_ADC_PDN_LINSEL,
> + 7, 1, NULL, 0),
> + SND_SOC_DAPM_ADC("Mono ADC", NULL, ES8316_ADC_PDN_LINSEL, 6, 1),
> + SND_SOC_DAPM_MUX("Digital Mic Mux", SND_SOC_NOPM, 0, 0,
> + &es8316_dmic_src_controls),
> +
> + /* Digital Interface */
> + SND_SOC_DAPM_AIF_OUT("I2S OUT", "I2S1 Capture", 1,
> + ES8316_SERDATA_ADC, 6, 1),
> + SND_SOC_DAPM_AIF_IN("I2S IN", "I2S1 Playback", 0,
> + SND_SOC_NOPM, 0, 0),
> +
> + SND_SOC_DAPM_MUX("DAC SRC Mux", SND_SOC_NOPM, 0, 0,
> + &es8316_dacsrc_mux_controls),
> +
> + SND_SOC_DAPM_DAC("Right DAC", NULL, SND_SOC_NOPM, 0, 1),
> + SND_SOC_DAPM_DAC("Left DAC", NULL, SND_SOC_NOPM, 4, 1),
> +
> + /* Headphone Output Side */
> + SND_SOC_DAPM_MUX("Left Hp mux", SND_SOC_NOPM, 0, 0,
> + &es8316_left_hpmux_controls),
> + SND_SOC_DAPM_MUX("Right Hp mux", SND_SOC_NOPM, 0, 0,
> + &es8316_right_hpmux_controls),
> + SND_SOC_DAPM_MIXER("Left Hp mixer", SND_SOC_NOPM,
> + 4, 1, &es8316_out_left_mix[0],
> + ARRAY_SIZE(es8316_out_left_mix)),
> + SND_SOC_DAPM_MIXER("Right Hp mixer", SND_SOC_NOPM,
> + 0, 1, &es8316_out_right_mix[0],
> + ARRAY_SIZE(es8316_out_right_mix)),
> +
> + /* Output charge pump */
> + SND_SOC_DAPM_PGA("HPCP L", SND_SOC_NOPM, 6, 0, NULL, 0),
> + SND_SOC_DAPM_PGA("HPCP R", SND_SOC_NOPM, 2, 0, NULL, 0),
> +
> + /* Output Driver */
> + SND_SOC_DAPM_PGA("HPVOL L", SND_SOC_NOPM, 0, 0, NULL, 0),
> + SND_SOC_DAPM_PGA("HPVOL R", SND_SOC_NOPM, 0, 0, NULL, 0),
> +
> + SND_SOC_DAPM_OUTPUT("HPOL"),
> + SND_SOC_DAPM_OUTPUT("HPOR"),
> +};
> +
> +static const struct snd_soc_dapm_route es8316_dapm_routes[] = {
> + /* Recording */
> + {"MIC1", NULL, "micbias"},
> + {"MIC2", NULL, "micbias"},
> +
> + {"Differential Mux", "lin1-rin1", "MIC1"},
> + {"Differential Mux", "lin2-rin2", "MIC2"},
> + {"Line input PGA", NULL, "Differential Mux"},
> +
> + {"Mono ADC", NULL, "Line input PGA"},
> +
> + {"Digital Mic Mux", "dmic disable", "Mono ADC"},
> +
> + {"I2S OUT", NULL, "Digital Mic Mux"},
> +
> + /* Playback */
> + {"DAC SRC Mux", "LDATA TO LDAC, RDATA TO RDAC", "I2S IN"},
> +
> + {"Left DAC", NULL, "DAC SRC Mux"},
> + {"Right DAC", NULL, "DAC SRC Mux"},
> +
> + {"Left Hp mux", "lin-rin with Boost and PGA", "Line input PGA"},
> + {"Right Hp mux", "lin-rin with Boost and PGA", "Line input PGA"},
> +
> + {"Left Hp mixer", "LLIN Switch", "Left Hp mux"},
> + {"Left Hp mixer", "Left DAC Switch", "Left DAC"},
> +
> + {"Right Hp mixer", "RLIN Switch", "Right Hp mux"},
> + {"Right Hp mixer", "Right DAC Switch", "Right DAC"},
> +
> + {"HPCP L", NULL, "Left Hp mixer"},
> + {"HPCP R", NULL, "Right Hp mixer"},
> +
> + {"HPVOL L", NULL, "HPCP L"},
> + {"HPVOL R", NULL, "HPCP R"},
> +
> + {"HPOL", NULL, "HPVOL L"},
> + {"HPOR", NULL, "HPVOL R"},
> +};
> +
> +static int es8316_set_dai_sysclk(struct snd_soc_dai *codec_dai,
> + int clk_id, unsigned int freq, int dir)
> +{
> + struct snd_soc_codec *codec = codec_dai->codec;
> + struct es8316_priv *es8316 = snd_soc_codec_get_drvdata(codec);
> + int i;
> +
> + if (freq == 0)
> + return -EINVAL;
> +
> + /* Limit supported sample rates to ones that can be autodetected
> + * by the codec running in slave mode.
> + */
> + for (i = 0; i < NR_SUPPORTED_MCLK_LRCK_RATIOS; i++) {
> + const unsigned int ratio = supported_mclk_lrck_ratios[i];
> +
> + es8316->allowed_rates[i] = freq / ratio;
Shouldn't this test that an integer ratio is possible instead of adding
rates that result from a truncation operation?
> + }
> +
> + es8316->sysclk_constraints.list = es8316->allowed_rates;
> + es8316->sysclk_constraints.count = NR_SUPPORTED_MCLK_LRCK_RATIOS;
> + es8316->sysclk = freq;
> +
> + return 0;
> +}
> +
> +static int es8316_set_dai_fmt(struct snd_soc_dai *codec_dai,
> + unsigned int fmt)
> +{
> + struct snd_soc_codec *codec = codec_dai->codec;
> + u8 serdata1 = 0;
> + u8 serdata2 = 0;
> + u8 mask;
> +
> + if ((fmt & SND_SOC_DAIFMT_MASTER_MASK) != SND_SOC_DAIFMT_CBS_CFS) {
> + dev_err(codec->dev, "Codec driver only supports slave mode\n");
> + return -EINVAL;
> + }
> +
> + if ((fmt & SND_SOC_DAIFMT_FORMAT_MASK) != SND_SOC_DAIFMT_I2S) {
> + dev_err(codec->dev, "Codec driver only supports I2S format\n");
> + return -EINVAL;
> + }
> +
> + /* Clock inversion */
> + switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
> + case SND_SOC_DAIFMT_NB_NF:
> + break;
> + case SND_SOC_DAIFMT_IB_IF:
> + serdata1 |= ES8316_SERDATA1_BCLK_INV;
> + serdata2 |= ES8316_SERDATA2_ADCLRP;
> + break;
> + case SND_SOC_DAIFMT_IB_NF:
> + serdata1 |= ES8316_SERDATA1_BCLK_INV;
> + break;
> + case SND_SOC_DAIFMT_NB_IF:
> + serdata2 |= ES8316_SERDATA2_ADCLRP;
> + break;
> + default:
> + return -EINVAL;
> + }
> +
> + mask = ES8316_SERDATA1_MASTER | ES8316_SERDATA1_BCLK_INV;
> + snd_soc_update_bits(codec, ES8316_SERDATA1, mask, serdata1);
> +
> + mask = ES8316_SERDATA2_FMT_MASK | ES8316_SERDATA2_ADCLRP;
> + snd_soc_update_bits(codec, ES8316_SERDATA_ADC, mask, serdata2);
> + snd_soc_update_bits(codec, ES8316_SERDATA_DAC, mask, serdata2);
> +
> + return 0;
> +}
> +
> +static int es8316_pcm_startup(struct snd_pcm_substream *substream,
> + struct snd_soc_dai *dai)
> +{
> + struct snd_soc_codec *codec = dai->codec;
> + struct es8316_priv *es8316 = snd_soc_codec_get_drvdata(codec);
> +
> + /* The set of sample rates that can be supported depends on the
> + * MCLK supplied to the CODEC.
> + */
> + if (es8316->sysclk)
> + snd_pcm_hw_constraint_list(substream->runtime, 0,
> + SNDRV_PCM_HW_PARAM_RATE,
> + &es8316->sysclk_constraints);
> +
> + return 0;
> +}
> +
> +static int es8316_pcm_hw_params(struct snd_pcm_substream *substream,
> + struct snd_pcm_hw_params *params,
> + struct snd_soc_dai *dai)
> +{
> + struct snd_soc_pcm_runtime *rtd = substream->private_data;
> + struct snd_soc_codec *codec = rtd->codec;
> + struct es8316_priv *es8316 = snd_soc_codec_get_drvdata(codec);
> + u8 wordlen = 0;
> +
> + if (!es8316->sysclk) {
> + dev_err(codec->dev, "No MCLK configured\n");
> + return -EINVAL;
> + }
> +
> + switch (params_format(params)) {
> + case SNDRV_PCM_FORMAT_S16_LE:
> + wordlen = ES8316_SERDATA2_LEN_16;
> + break;
> + case SNDRV_PCM_FORMAT_S20_3LE:
> + wordlen = ES8316_SERDATA2_LEN_20;
> + break;
> + case SNDRV_PCM_FORMAT_S24_LE:
> + wordlen = ES8316_SERDATA2_LEN_24;
> + break;
> + case SNDRV_PCM_FORMAT_S32_LE:
> + wordlen = ES8316_SERDATA2_LEN_32;
> + break;
> + default:
> + return -EINVAL;
> + }
> +
> + snd_soc_update_bits(codec, ES8316_SERDATA_DAC,
> + ES8316_SERDATA2_LEN_MASK, wordlen);
> + snd_soc_update_bits(codec, ES8316_SERDATA_ADC,
> + ES8316_SERDATA2_LEN_MASK, wordlen);
> + return 0;
> +}
> +
> +static int es8316_mute(struct snd_soc_dai *dai, int mute)
> +{
> + snd_soc_update_bits(dai->codec, ES8316_DAC_SET1, 0x20,
> + mute ? 0x20 : 0);
> + return 0;
> +}
> +
> +static int es8316_set_bias_level(struct snd_soc_codec *codec,
> + enum snd_soc_bias_level level)
> +{
> + switch (level) {
> + case SND_SOC_BIAS_ON:
> + snd_soc_write(codec, ES8316_RESET, 0xC0);
> + snd_soc_write(codec, ES8316_CPHP_OUTEN, 0x66);
> + snd_soc_write(codec, ES8316_DAC_PDN, 0x00);
> + snd_soc_write(codec, ES8316_CPHP_LDOCTL, 0x30);
> + snd_soc_write(codec, ES8316_CPHP_PDN2, 0x10);
> + snd_soc_write(codec, ES8316_CPHP_PDN1, 0x03);
> + snd_soc_write(codec, ES8316_HPMIX_PDN, 0x00);
> + snd_soc_update_bits(codec, ES8316_ADC_PDN_LINSEL, 0xc0, 0x00);
> + snd_soc_write(codec, ES8316_SYS_PDN, 0x00);
> + snd_soc_write(codec, ES8316_SYS_LP1, 0x04);
> + snd_soc_write(codec, ES8316_SYS_LP2, 0x0c);
> + break;
> + case SND_SOC_BIAS_PREPARE:
> + break;
> + case SND_SOC_BIAS_STANDBY:
> + break;
> + case SND_SOC_BIAS_OFF:
> + snd_soc_write(codec, ES8316_CPHP_OUTEN, 0x00);
> + snd_soc_write(codec, ES8316_DAC_PDN, 0x11);
> + snd_soc_write(codec, ES8316_CPHP_LDOCTL, 0x03);
> + snd_soc_write(codec, ES8316_CPHP_PDN2, 0x22);
> + snd_soc_write(codec, ES8316_CPHP_PDN1, 0x06);
> + snd_soc_write(codec, ES8316_HPMIX_PDN, 0x33);
> + snd_soc_update_bits(codec, ES8316_ADC_PDN_LINSEL, 0xc0, 0xc0);
> + snd_soc_write(codec, ES8316_SYS_PDN, 0x3f);
> + snd_soc_write(codec, ES8316_SYS_LP1, 0x3f);
> + snd_soc_write(codec, ES8316_SYS_LP2, 0x1f);
> + snd_soc_write(codec, ES8316_RESET, 0x00);
> + break;
> + }
> +
> + return 0;
> +}
> +
> +#define ES8316_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
> + SNDRV_PCM_FMTBIT_S24_LE)
> +
> +static struct snd_soc_dai_ops es8316_ops = {
> + .startup = es8316_pcm_startup,
> + .hw_params = es8316_pcm_hw_params,
> + .set_fmt = es8316_set_dai_fmt,
> + .set_sysclk = es8316_set_dai_sysclk,
> + .digital_mute = es8316_mute,
> +};
> +
> +static struct snd_soc_dai_driver es8316_dai = {
> + .name = "ES8316 HiFi",
> + .playback = {
> + .stream_name = "Playback",
> + .channels_min = 1,
> + .channels_max = 2,
> + .rates = SNDRV_PCM_RATE_8000_48000,
> + .formats = ES8316_FORMATS,
> + },
> + .capture = {
> + .stream_name = "Capture",
> + .channels_min = 1,
> + .channels_max = 2,
> + .rates = SNDRV_PCM_RATE_8000_48000,
> + .formats = ES8316_FORMATS,
> + },
> + .ops = &es8316_ops,
> + .symmetric_rates = 1,
> +};
> +
> +static int es8316_probe(struct snd_soc_codec *codec)
> +{
> + snd_soc_write(codec, ES8316_RESET, 0x3f);
> + usleep_range(5000, 5500);
> + snd_soc_write(codec, ES8316_RESET, 0x00);
> + snd_soc_write(codec, ES8316_SYS_VMIDSEL, 0xFF);
> + msleep(30);
> +
> + snd_soc_write(codec, ES8316_CLKMGR_CLKSEL, 0x08);
> + snd_soc_write(codec, ES8316_CLKMGR_ADCOSR, 0x20);
> + snd_soc_write(codec, ES8316_CLKMGR_ADCDIV1, 0x11);
> + snd_soc_write(codec, ES8316_CLKMGR_ADCDIV2, 0x00);
> + snd_soc_write(codec, ES8316_CLKMGR_DACDIV1, 0x11);
> + snd_soc_write(codec, ES8316_CLKMGR_DACDIV2, 0x00);
> + snd_soc_write(codec, ES8316_CLKMGR_CPDIV, 0x00);
> + snd_soc_write(codec, ES8316_SERDATA1, 0x04);
> + snd_soc_write(codec, ES8316_CLKMGR_CLKSW, 0x7f);
> + snd_soc_write(codec, ES8316_CAL_TYPE, 0x0F);
> + snd_soc_write(codec, ES8316_CAL_HPLIV, 0x90);
> + snd_soc_write(codec, ES8316_CAL_HPRIV, 0x90);
> + snd_soc_write(codec, ES8316_ADC_VOLUME, 0x00);
> + snd_soc_write(codec, ES8316_ADC_D2SEPGA, 0x00);
> + snd_soc_write(codec, ES8316_ADC_DMIC, 0x08);
> + snd_soc_write(codec, ES8316_DAC_SET2, 0x00);
> + snd_soc_write(codec, ES8316_DAC_SET3, 0x00);
> + snd_soc_write(codec, ES8316_DAC_VOLL, 0x02);
> + snd_soc_write(codec, ES8316_DAC_VOLR, 0x02);
> + snd_soc_write(codec, ES8316_SERDATA_ADC, 0x00);
> + snd_soc_write(codec, ES8316_SERDATA_DAC, 0x00);
> + snd_soc_write(codec, ES8316_SYS_VMIDLOW, 0x11);
> + snd_soc_write(codec, ES8316_SYS_VSEL, 0xfc);
> + snd_soc_write(codec, ES8316_SYS_REF, 0x28);
> + snd_soc_write(codec, ES8316_HPMIX_SEL, 0x00);
> + snd_soc_write(codec, ES8316_HPMIX_SWITCH, 0x88);
> + snd_soc_write(codec, ES8316_HPMIX_VOL, 0x88);
> + snd_soc_write(codec, ES8316_CPHP_ICAL_VOL, 0x00);
> + snd_soc_write(codec, ES8316_GPIO_SEL, 0x00);
> + snd_soc_write(codec, ES8316_GPIO_DEBUNCE_INT, 0x02);
> + snd_soc_write(codec, ES8316_TESTMODE, 0xa0);
> + snd_soc_write(codec, ES8316_TEST1, 0x00);
> + snd_soc_write(codec, ES8316_TEST2, 0x04);
> + snd_soc_write(codec, ES8316_RESET, 0xc0);
> + msleep(50);
> + snd_soc_write(codec, ES8316_ADC_PGAGAIN, 0x60);
> + snd_soc_write(codec, ES8316_ADC_D2SEPGA, 0x01);
> +
> + /* ADC DS mode, HPF enable */
> + snd_soc_write(codec, ES8316_ADC_DMIC, 0x08);
> + snd_soc_write(codec, ES8316_ADC_ALC1, 0xcd);
> + snd_soc_write(codec, ES8316_ADC_ALC2, 0x08);
> + snd_soc_write(codec, ES8316_ADC_ALC3, 0xa0);
> + snd_soc_write(codec, ES8316_ADC_ALC4, 0x05);
> + snd_soc_write(codec, ES8316_ADC_ALC5, 0x06);
> + snd_soc_write(codec, ES8316_ADC_ALC6, 0x61);
> + return 0;
> +}
> +
> +static struct snd_soc_codec_driver soc_codec_dev_es8316 = {
> + .probe = es8316_probe,
> + .set_bias_level = es8316_set_bias_level,
> + .idle_bias_off = true,
> +
> + .component_driver = {
> + .controls = es8316_snd_controls,
> + .num_controls = ARRAY_SIZE(es8316_snd_controls),
> + .dapm_widgets = es8316_dapm_widgets,
> + .num_dapm_widgets = ARRAY_SIZE(es8316_dapm_widgets),
> + .dapm_routes = es8316_dapm_routes,
> + .num_dapm_routes = ARRAY_SIZE(es8316_dapm_routes),
> + },
> +};
> +
> +static const struct regmap_config es8316_regmap = {
> + .reg_bits = 8,
> + .val_bits = 8,
> + .max_register = 0x53,
> + .cache_type = REGCACHE_RBTREE,
> +};
> +
> +static int es8316_i2c_probe(struct i2c_client *i2c_client,
> + const struct i2c_device_id *id)
> +{
> + struct es8316_priv *es8316;
> + struct regmap *regmap;
> +
> + es8316 = devm_kzalloc(&i2c_client->dev, sizeof(struct es8316_priv),
> + GFP_KERNEL);
> + if (es8316 == NULL)
> + return -ENOMEM;
> +
> + i2c_set_clientdata(i2c_client, es8316);
> +
> + regmap = devm_regmap_init_i2c(i2c_client, &es8316_regmap);
> + if (IS_ERR(regmap))
> + return PTR_ERR(regmap);
> +
> + return snd_soc_register_codec(&i2c_client->dev, &soc_codec_dev_es8316,
> + &es8316_dai, 1);
> +}
> +
> +static int es8316_i2c_remove(struct i2c_client *client)
> +{
> + snd_soc_unregister_codec(&client->dev);
> + return 0;
> +}
> +
> +static const struct i2c_device_id es8316_i2c_id[] = {
> + {"ESSX8316", 0 },
> + {}
> +};
> +MODULE_DEVICE_TABLE(i2c, es8316_i2c_id);
> +
> +static const struct of_device_id es8316_of_match[] = {
> + { .compatible = "everest,es8316", },
> + {},
> +};
> +MODULE_DEVICE_TABLE(of, es8316_of_match);
> +
> +static const struct acpi_device_id es8316_acpi_match[] = {
> + {"ESSX8316", 0},
> + {},
> +};
> +MODULE_DEVICE_TABLE(acpi, es8316_acpi_match);
> +
> +static struct i2c_driver es8316_i2c_driver = {
> + .driver = {
> + .name = "es8316",
> + .acpi_match_table = ACPI_PTR(es8316_acpi_match),
> + .of_match_table = of_match_ptr(es8316_of_match),
> + },
> + .probe = es8316_i2c_probe,
> + .remove = es8316_i2c_remove,
> + .id_table = es8316_i2c_id,
> +};
> +module_i2c_driver(es8316_i2c_driver);
> +
> +MODULE_DESCRIPTION("Everest Semi ES8316 ALSA SoC Codec Driver");
> +MODULE_AUTHOR("David Yang <yangxiaohua at everest-semi.com>");
> +MODULE_LICENSE("GPL v2");
> diff --git a/sound/soc/codecs/es8316.h b/sound/soc/codecs/es8316.h
> new file mode 100644
> index 000000000000..702bebc69ca8
> --- /dev/null
> +++ b/sound/soc/codecs/es8316.h
> @@ -0,0 +1,122 @@
> +/*
> + * Copyright Everest Semiconductor Co.,Ltd
> + *
> + * Author: David Yang <yangxiaohua at everest-semi.com>
> + *
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License version 2 as
> + * published by the Free Software Foundation.
> + *
> + */
> +
> +#ifndef _ES8316_H
> +#define _ES8316_H
> +
> +/*
> + * ES8316 register space
> + */
> +
> +/* Reset Control */
> +#define ES8316_RESET 0x00
> +
> +/* Clock Management */
> +#define ES8316_CLKMGR_CLKSW 0x01
> +#define ES8316_CLKMGR_CLKSEL 0x02
> +#define ES8316_CLKMGR_ADCOSR 0x03
> +#define ES8316_CLKMGR_ADCDIV1 0x04
> +#define ES8316_CLKMGR_ADCDIV2 0x05
> +#define ES8316_CLKMGR_DACDIV1 0x06
> +#define ES8316_CLKMGR_DACDIV2 0x07
> +#define ES8316_CLKMGR_CPDIV 0x08
> +
> +/* Serial Data Port Control */
> +#define ES8316_SERDATA1 0x09
> +#define ES8316_SERDATA_ADC 0x0a
> +#define ES8316_SERDATA_DAC 0x0b
> +
> +/* System Control */
> +#define ES8316_SYS_VMIDSEL 0x0c
> +#define ES8316_SYS_PDN 0x0d
> +#define ES8316_SYS_LP1 0x0e
> +#define ES8316_SYS_LP2 0x0f
> +#define ES8316_SYS_VMIDLOW 0x10
> +#define ES8316_SYS_VSEL 0x11
> +#define ES8316_SYS_REF 0x12
> +
> +/* Headphone Mixer */
> +#define ES8316_HPMIX_SEL 0x13
> +#define ES8316_HPMIX_SWITCH 0x14
> +#define ES8316_HPMIX_PDN 0x15
> +#define ES8316_HPMIX_VOL 0x16
> +
> +/* Charge Pump Headphone driver */
> +#define ES8316_CPHP_OUTEN 0x17
> +#define ES8316_CPHP_ICAL_VOL 0x18
> +#define ES8316_CPHP_PDN1 0x19
> +#define ES8316_CPHP_PDN2 0x1a
> +#define ES8316_CPHP_LDOCTL 0x1b
> +
> +/* Calibration */
> +#define ES8316_CAL_TYPE 0x1c
> +#define ES8316_CAL_SET 0x1d
> +#define ES8316_CAL_HPLIV 0x1e
> +#define ES8316_CAL_HPRIV 0x1f
> +#define ES8316_CAL_HPLMV 0x20
> +#define ES8316_CAL_HPRMV 0x21
> +
> +/* ADC Control */
> +#define ES8316_ADC_PDN_LINSEL 0x22
> +#define ES8316_ADC_PGAGAIN 0x23
> +#define ES8316_ADC_D2SEPGA 0x24
> +#define ES8316_ADC_DMIC 0x25
> +#define ES8316_ADC_MUTE 0x26
> +#define ES8316_ADC_VOLUME 0x27
> +#define ES8316_ADC_ALC1 0x29
> +#define ES8316_ADC_ALC2 0x2a
> +#define ES8316_ADC_ALC3 0x2b
> +#define ES8316_ADC_ALC4 0x2c
> +#define ES8316_ADC_ALC5 0x2d
> +#define ES8316_ADC_ALC6 0x2e
> +
> +/* DAC Control */
> +#define ES8316_DAC_PDN 0x2f
> +#define ES8316_DAC_SET1 0x30
> +#define ES8316_DAC_SET2 0x31
> +#define ES8316_DAC_SET3 0x32
> +#define ES8316_DAC_VOLL 0x33
> +#define ES8316_DAC_VOLR 0x34
> +
> +/* GPIO */
> +#define ES8316_GPIO_SEL 0x4d
> +#define ES8316_GPIO_DEBUNCE_INT 0x4e
> +#define ES8316_GPIO_FLAG 0x4f
> +
> +/* Test mode */
> +#define ES8316_TESTMODE 0x50
> +#define ES8316_TEST1 0x51
> +#define ES8316_TEST2 0x52
> +#define ES8316_TEST3 0x53
> +
> +/*
> + * Field definitions
> + */
> +
> +/* ES8316_SERDATA1 */
> +#define ES8316_SERDATA1_MASTER 0x80
> +#define ES8316_SERDATA1_BCLK_INV 0x20
> +
> +/* ES8316_SERDATA_ADC and _DAC */
> +#define ES8316_SERDATA2_FMT_MASK 0x3
> +#define ES8316_SERDATA2_FMT_I2S 0x00
> +#define ES8316_SERDATA2_FMT_LEFTJ 0x01
> +#define ES8316_SERDATA2_FMT_RIGHTJ 0x02
> +#define ES8316_SERDATA2_FMT_PCM 0x03
> +#define ES8316_SERDATA2_ADCLRP 0x20
> +#define ES8316_SERDATA2_LEN_MASK 0x1c
> +#define ES8316_SERDATA2_LEN_24 0x00
> +#define ES8316_SERDATA2_LEN_20 0x04
> +#define ES8316_SERDATA2_LEN_18 0x08
> +#define ES8316_SERDATA2_LEN_16 0x0c
> +#define ES8316_SERDATA2_LEN_32 0x10
> +
> +#endif
>
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